/* ===== Variables ===== */
:root {
  --color-primary: #065f46;
  --color-primary-dark: #043d2d;
  --color-primary-light: #10b981;
  --color-primary-tint: #ecfdf5;
  --color-primary-tint-border: #bbf0da;
  --color-accent: #0ea5a5;
  --color-accent-dark: #0f766e;
  --color-accent-warm: #d97706;
  --color-accent-warm-dark: #b45309;
  --color-dark: #0b1220;
  --color-text: #1f2937;
  --color-muted: #5b6b68;
  --color-bg: #f5f8f7;
  --color-white: #ffffff;
  --color-border: #e1e8e5;
  --color-success: #16a34a;
  --color-success-bg: #dcfce7;
  --color-error: #dc2626;
  --color-error-bg: #fee2e2;
  --font-heading: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 8px 24px rgba(6, 20, 17, 0.08);
  --shadow-lg: 0 20px 40px rgba(6, 20, 17, 0.14);
  --shadow-primary: 0 14px 28px rgba(6, 95, 70, 0.28);
  --container-width: 1160px;
}

/* ===== Reset ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

::selection { background: var(--color-primary); color: var(--color-white); }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

ul { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.25;
  color: var(--color-dark);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }

.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: '';
  width: 18px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.section-head h2 { font-size: 2rem; margin-bottom: 12px; }
.section-head p { color: var(--color-muted); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn:active { transform: translateY(0) scale(0.97); }
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 18px 36px rgba(6, 95, 70, 0.35);
}
.btn-outline {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-tint);
  transform: translateY(-2px);
}
.btn-light {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: 0 8px 20px rgba(6, 20, 17, 0.25);
}
.btn-light:hover { transform: translateY(-3px); box-shadow: 0 16px 32px rgba(6, 20, 17, 0.3); }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-dark);
  display: inline-flex;
  align-items: center;
}
.logo span { color: var(--color-primary); }
.logo-img { height: 40px; width: auto; display: block; }

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 32px;
}
.main-nav a {
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.main-nav a:hover,
.main-nav a.active { color: var(--color-primary); border-color: var(--color-primary); }
.main-nav a.btn-nav {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px 20px;
  border-radius: var(--radius);
  border-bottom: none;
}
.main-nav a.btn-nav:hover { background: var(--color-primary-dark); color: var(--color-white); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  width: 100%;
  height: 2px;
  background: var(--color-dark);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero (Inicio) ===== */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.05) 1px, transparent 1.5px) 0 0 / 28px 28px,
    linear-gradient(160deg, var(--color-dark) 0%, #0e2a24 60%, var(--color-dark) 100%);
  color: var(--color-white);
  padding: 110px 0 90px;
  border-bottom: 1px solid rgba(16, 185, 129, 0.15);
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
  height: 100%;
  background: linear-gradient(180deg, rgba(14, 165, 165, 0.16), transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero .eyebrow {
  color: var(--color-accent);
}
.hero .eyebrow::before {
  background: var(--color-accent);
}
.hero h1 { font-size: 2.8rem; color: var(--color-white); margin-bottom: 20px; }
.hero p { color: #cbd5e1; font-size: 1.05rem; margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-card {
  position: relative;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 32px;
  padding-top: 46px;
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hero-card::before {
  content: '';
  position: absolute;
  top: 18px;
  left: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #f87171;
  box-shadow: 18px 0 0 #fbbf24, 36px 0 0 #34d399;
}
.hero-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
}
.hero-card ul { display: flex; flex-direction: column; gap: 16px; }
.hero-card li { display: flex; gap: 12px; align-items: flex-start; color: #e2e8f0; }
.hero-card li strong { display: block; color: var(--color-white); }
.hero-card .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-accent); margin-top: 6px; flex-shrink: 0;
}

/* ===== Page hero (paginas internas) ===== */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary), var(--color-dark));
  color: var(--color-white);
  padding: 70px 0;
  text-align: center;
}
.page-hero h1 { color: var(--color-white); font-size: 2.2rem; margin-bottom: 12px; }
.page-hero p { color: #d1fae5; max-width: 600px; margin: 0 auto; }

/* ===== Cards genericas ===== */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card {
  position: relative;
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-primary);
}
.card:hover::before { transform: scaleX(1); }
.card .icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: var(--color-primary-tint);
  border: 1px solid var(--color-primary-tint-border);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  transition: transform 0.25s ease, background 0.25s ease;
}
.card .icon svg { width: 24px; height: 24px; }
.card:hover .icon { transform: translateY(-2px); background: var(--color-primary); color: var(--color-white); }
.card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.card p { color: var(--color-muted); font-size: 0.95rem; }
.card .price-tag {
  margin-top: 16px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-dark);
}
.card .price-tag span { font-size: 0.8rem; font-weight: 600; color: var(--color-muted); }
.card .price-alt {
  margin-top: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-accent-warm-dark);
}
.card .price-alt span { font-weight: 500; color: var(--color-muted); }

/* ===== Portafolio ===== */
.project-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: block;
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.project-thumb {
  height: 160px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.project-thumb span {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2.5rem;
  opacity: 0.9;
  transition: transform 0.35s ease;
}
.project-card:hover .project-thumb span { transform: scale(1.15); }
.project-info { padding: 24px; }
.project-info h3 { margin-bottom: 8px; }
.project-info p { color: var(--color-muted); font-size: 0.92rem; margin-bottom: 16px; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  background: var(--color-primary-tint);
  border: 1px solid var(--color-primary-tint-border);
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius);
}

.project-detail { max-width: 760px; margin: 0 auto; }
.project-detail .tags { margin-bottom: 24px; }
.project-detail p { color: var(--color-text); margin-bottom: 28px; white-space: pre-line; }
.project-detail .btn { margin-right: 12px; }

/* ===== Precios ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}
.price-card {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.price-card.featured {
  border-color: var(--color-primary);
  border-width: 2px;
  background: var(--color-white);
  transform: scale(1.03);
  box-shadow: 0 20px 50px rgba(6, 95, 70, 0.18);
}
.price-card.featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}
.price-card.featured:hover { transform: scale(1.03) translateY(-4px); }
.price-card .badge {
  align-self: flex-start;
  background: var(--color-accent-warm);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 4px 12px;
  border-radius: var(--radius);
  margin-bottom: 16px;
}
.price-card h3 { font-size: 1.2rem; margin-bottom: 6px; }
.price-card .price { font-size: 2.1rem; font-weight: 800; color: var(--color-dark); margin: 12px 0; }
.price-card .price span { font-size: 0.95rem; font-weight: 500; color: var(--color-muted); }
.price-card ul { margin: 20px 0 28px; display: flex; flex-direction: column; gap: 12px; flex-grow: 1; }
.price-card li { color: var(--color-text); font-size: 0.92rem; padding-left: 24px; position: relative; }
.price-card li::before {
  content: '✓';
  position: absolute; left: 0; top: 0;
  color: var(--color-success); font-weight: 700;
}

/* ===== Formulario de contacto ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
}
.contact-form .form-group { margin-bottom: 20px; }
.contact-form label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 0.92rem; }
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color 0.15s ease;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 4px rgba(6, 95, 70, 0.12);
}

.contact-info { background: var(--color-bg); border-radius: var(--radius); padding: 32px; }
.contact-info h3 { margin-bottom: 20px; }
.contact-info ul { display: flex; flex-direction: column; gap: 14px; color: var(--color-text); }

.alert {
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 24px;
  font-weight: 500;
  font-size: 0.92rem;
}
.alert-success { background: var(--color-success-bg); color: var(--color-success); }
.alert-error { background: var(--color-error-bg); color: var(--color-error); }

/* ===== CTA final ===== */
.cta {
  background: linear-gradient(135deg, var(--color-dark), #0e2a24);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--color-white);
  text-align: center;
  padding: 70px 0;
  border-radius: var(--radius-lg);
}
.cta h2 { color: var(--color-white); margin-bottom: 14px; }
.cta p { color: #cbd5e1; margin-bottom: 28px; }

/* ===== Nosotros ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}

/* ===== Footer ===== */
.site-footer { background: var(--color-dark); color: #cbd5e1; padding-top: 64px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-col .logo { color: var(--color-white); margin-bottom: 14px; display: inline-block; }
.footer-col p { color: #94a3b8; font-size: 0.92rem; }
.footer-col h4 { color: var(--color-white); font-size: 1rem; margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: #94a3b8; font-size: 0.92rem; transition: color 0.15s ease; }
.footer-col a:hover { color: var(--color-white); }
.footer-contact li { color: #94a3b8; font-size: 0.92rem; }
.social-links { display: flex; gap: 10px; margin-top: 18px; }
.social-links a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700;
  transition: background 0.2s ease, transform 0.2s ease;
}
.social-links a:hover { background: var(--color-primary); transform: translateY(-3px); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
}

/* ===== Utilidades ===== */
.text-center { text-align: center; }
.mt-32 { margin-top: 32px; }

/* ===== Animaciones ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .grid-cards { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .price-card.featured { transform: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-150%);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .main-nav ul { flex-direction: column; align-items: stretch; padding: 24px; gap: 18px; }
  .main-nav a.btn-nav { text-align: center; }

  .hero h1 { font-size: 2.1rem; }
  .grid-cards { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
}

/* ===== WhatsApp Float Button ===== */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 60px;
  height: 60px;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  z-index: 999;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  animation: whatsapp-pulse 2.4s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
}

@keyframes whatsapp-pulse {
  0% { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25), 0 0 0 0 rgba(37, 211, 102, 0.5); }
  70% { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25), 0 0 0 14px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25), 0 0 0 0 rgba(37, 211, 102, 0); }
}

@media (max-width: 720px) {
  .whatsapp-float {
    right: 16px;
    bottom: 16px;
    width: 54px;
    height: 54px;
  }
}